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Biogen

884 hedge funds and large institutions have $72.3B invested in Biogen in 2014 Q4 according to their latest regulatory filings, with 130 funds opening new positions, 343 increasing their positions, 279 reducing their positions, and 54 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
884
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
52
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$975M
Puts
$1.36B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
26
$612M
27
$581M
28
$559M
29
$546M
30
$535M
31
$532M
32
$517M
33
$507M
34
$491M
35
$416M
36
$408M
37
$352M
38
$322M
39
$319M
40
$313M
41
$305M
42
$282M
43
$282M
44
$265M
45
$265M
46
$265M
47
$244M
48
$242M
49
$236M
50
$230M